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  • 双缓冲设置控件

    public class DoubleBufferListView : ListView
        {
            
    public DoubleBufferListView()
            {
                SetStyle(ControlStyles.DoubleBuffer 
    | ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint, true);
                UpdateStyles();
            }
        }
    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Windows.Forms;

    namespace WindowsFormsApplication1
    {
        
    public partial class Form1 : Form
        {
            
    public int ViewSel { getset; }
            
    public Form1()
            {
                InitializeComponent();
            }

            
    private void Form1_Load(object sender, EventArgs e)
            {
                
            }

            
    private void CreateListView()
            {
            } 

            
    private void timer1_Tick(object sender, EventArgs e)
            {
                listView1.BeginUpdate();
                listView1.Clear();
                ListViewItem lItem;
                
    this.listView1.Alignment = ListViewAlignment.Default;
                
    for (int i = 0; i < 80; i++)
                {
                    
    //Application.DoEvents();
                    lItem = new ListViewItem();
                    lItem.Text 
    = DateTime.Now.Second + "_test";
                    lItem.Tag 
    = i;
                    lItem.ImageIndex 
    = i % 2;
                    lItem.ToolTipText 
    = "空间" + i;
                    listView1.Items.Add(lItem);
                }
                listView1.Items[ViewSel].Selected 
    = true;
                listView1.EndUpdate();
            }

            
    private void listView1_SelectedIndexChanged(object sender, EventArgs e)
            {
                
    if (listView1.SelectedItems.Count > 0)
                {
                    ViewSel 
    = listView1.SelectedItems[0].Index;
                    
    this.Text = listView1.SelectedItems[0].ToolTipText;
                }
            }
        }
    }
    namespace WindowsFormsApplication1
    {
        
    partial class Form1
        {
            
    /// <summary>
            
    /// 必需的设计器变量。
            
    /// </summary>
            private System.ComponentModel.IContainer components = null;

            
    /// <summary>
            
    /// 清理所有正在使用的资源。
            
    /// </summary>
            
    /// <param name="disposing">如果应释放托管资源,为 true;否则为 false。</param>
            protected override void Dispose(bool disposing)
            {
                
    if (disposing && (components != null))
                {
                    components.Dispose();
                }
                
    base.Dispose(disposing);
            }

            
    #region Windows 窗体设计器生成的代码

            
    /// <summary>
            
    /// 设计器支持所需的方法 - 不要
            
    /// 使用代码编辑器修改此方法的内容。
            
    /// </summary>
            private void InitializeComponent()
            {
                
    this.components = new System.ComponentModel.Container();
                System.ComponentModel.ComponentResourceManager resources 
    = new System.ComponentModel.ComponentResourceManager(typeof(Form1));
                
    this.imageList1 = new System.Windows.Forms.ImageList(this.components);
                
    this.timer1 = new System.Windows.Forms.Timer(this.components);
                
    this.listView1 = new WindowsFormsApplication1.DoubleBufferListView();
                
    this.SuspendLayout();
                
    // 
                
    // imageList1
                
    // 
                this.imageList1.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("imageList1.ImageStream")));
                
    this.imageList1.TransparentColor = System.Drawing.Color.Transparent;
                
    this.imageList1.Images.SetKeyName(0"示例图片_03.jpg");
                
    this.imageList1.Images.SetKeyName(1"示例图片_02.jpg");
                
    this.imageList1.Images.SetKeyName(2"示例图片_04.jpg");
                
    // 
                
    // timer1
                
    // 
                this.timer1.Enabled = true;
                
    this.timer1.Interval = 1000;
                
    this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
                
    // 
                
    // listView1
                
    // 
                this.listView1.Dock = System.Windows.Forms.DockStyle.Fill;
                
    this.listView1.LargeImageList = this.imageList1;
                
    this.listView1.Location = new System.Drawing.Point(00);
                
    this.listView1.Name = "listView1";
                
    this.listView1.ShowItemToolTips = true;
                
    this.listView1.Size = new System.Drawing.Size(292266);
                
    this.listView1.SmallImageList = this.imageList1;
                
    this.listView1.TabIndex = 0;
                
    this.listView1.UseCompatibleStateImageBehavior = false;
                
    this.listView1.SelectedIndexChanged += new System.EventHandler(this.listView1_SelectedIndexChanged);
                
    // 
                
    // Form1
                
    // 
                this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
                
    this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
                
    this.ClientSize = new System.Drawing.Size(292266);
                
    this.Controls.Add(this.listView1);
                
    this.DoubleBuffered = true;
                
    this.Name = "Form1";
                
    this.Text = "Form1";
                
    this.Load += new System.EventHandler(this.Form1_Load);
                
    this.ResumeLayout(false);

            }

            
    #endregion

            
    private System.Windows.Forms.ImageList imageList1;
            
    private System.Windows.Forms.Timer timer1;
            
    private DoubleBufferListView listView1;
        }
    }
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  • 原文地址:https://www.cnblogs.com/kenter/p/2020228.html
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